Birmingham doesn't really need a bus station in the City Centre for local routes, because of far too many routes & a load of routes are high frequency too, frequent routes like the 50 could need 2 or 3 layover spaces as well as stand space should a bus station be built.
Whilst the likes of Leeds, Glasgow, Edinburgh, Bristol & few other Towns & Cities have bus stations, however they're used by regional routes & coaches, most of the local routes operate as cross town routes, or start/terminate at another location Town/City Centre
Whilst the likes of Leeds, Glasgow, Edinburgh, Bristol & few other Towns & Cities have bus stations, however they're used by regional routes & coaches, most of the local routes operate as cross town routes, or start/terminate at another location Town/City Centre